Credits
==================================

Core Development
~~~~~~~~~~~~~~~~

* **Diogo Costa** -- Lead developer, framework design, and implementation (University of Saskatchewan / University of Evora)

Contributing Organizations
~~~~~~~~~~~~~~~~~~~~~~~~~~

* `University of Evora (ue-hydro) <https://github.com/ue-hydro>`_ -- Current development home
* `University of Saskatchewan <https://www.usask.ca/>`_ -- Original development and testing
* `Environment and Climate Change Canada (ECCC) <https://www.canada.ca/en/environment-climate-change.html>`_ -- Research support and foundational model development

Predecessor Models
~~~~~~~~~~~~~~~~~~

OpenWQ builds upon experience and code from several predecessor models:

* **CRHM-WQ** -- Cold Regions Hydrological Model - Water Quality
* **WINTRA** -- Winter nutrient transport framework
* **PULSE** -- Multiphase multilayer snow hydrochemistry model
* **FLUXOS** -- Watershed hydrodynamic-water quality model

Third-Party Libraries
~~~~~~~~~~~~~~~~~~~~~

OpenWQ gratefully uses the following open-source libraries:

* `Armadillo <https://arma.sourceforge.net/>`_ -- C++ linear algebra library (Sanderson and Curtin, 2016)
* `ExprTk <http://www.partow.net/programming/exprtk/index.html>`_ -- C++ Mathematical Expression Toolkit (Arash Partow)
* `PHREEQC / PhreeqcRM <https://www.usgs.gov/software/phreeqc-version-3>`_ -- Geochemical reaction module (USGS)
* `SUNDIALS <https://computing.llnl.gov/projects/sundials>`_ -- Suite of Nonlinear and Differential/Algebraic Equation Solvers (LLNL)
* `HDF5 <https://www.hdfgroup.org/solutions/hdf5/>`_ -- Hierarchical Data Format library
* `VTK <https://vtk.org/>`_ -- Visualization Toolkit

License
~~~~~~~

OpenWQ is distributed under the GNU General Public License v3.0 (GPL-3.0).
See the :doc:`License <1_4_License>` section for details.